Chemical and Petroleum Engineering

, Volume 51, Issue 3–4, pp 188–193 | Cite as

Assessment of Stressed State and Performance Characteristics of Jacketed Spring with a Cut for Drill Shock Absorber

  • A. S. VelichkovichEmail author
  • T. M. Dalyak
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A design of a drilling shock absorber with an elastic element in the form of several jacketed springs with a cut, which operate in parallel, is presented. A finite-element model of contact interaction of a cylindrical jacket with a cut and an elastic body is built, which can be used for analyzing the stressed-stained state and studying the performance characteristics of jacketed elastic elements of drill vibration protection devices. Distributions of stresses and displacements of the bearing member of the jacketed spring are given. The strength and damping capacity of the element with a cut are estimated.


drilling shock absorber elastic element jacket with a cut jacketed spring 


  1. 1.
    E. K. Yunin and V. K. Khegai, Dynamics of Deep Drilling, Nedra, Moscow (2004).Google Scholar
  2. 2.
    V. I. Gulyaev, S. N. Khudolii, and E. I. Borshch, “Torsional vibrations of bottom-hole drill string assembly,” Probl. Prochn., No. 6, 13–25 (2010).Google Scholar
  3. 3.
    J. K. Vandiver, J. W. Nicholson, and R. J. Shyu, “Case studies of the bending vibration and whirling motion of drill collars,” SPE Drill. Eng., 5, 282–290 (1990).CrossRefGoogle Scholar
  4. 4.
    K. Rapold, “Drilling vibration measurement detectbit stick – slop,” Oil and Gas J., 91, No. 9, 66–70 (1993).Google Scholar
  5. 5.
    A. P. Christoforou and A. S. Yigit, “Fully coupled vibrations of actively controlled drillstrings,” J. Sound and Vibr., 267, 1029–1045 (2003).CrossRefGoogle Scholar
  6. 6.
    M. Karkoub, Y. Abdel-Magid, and B. Balachandran, “Drill-string torsional vibration suppression using GA optimized controllers,”J. Canad. Petrol. Technol., 12, 32–38 (2009).CrossRefGoogle Scholar
  7. 7.
    A. S. Velichkovich and V. M. Shopa, “Drilling shock absorbers as a method of increasing the technical and economic indicators of borehole drilling,” Naft. Gaz. Prom., No. 3, 16–18 (2000).Google Scholar
  8. 8.
    A. S. Velichkovich, “Drilling shock absorber based on a new jacketed spring,” Khim. Neftegaz. Mashinostr., No. 7, 9–11 (2005).Google Scholar
  9. 9.
    A. S. Velichkovich, S. V. Velichkovich, and V. M. Shopa, A Group of Methods of Vibroprotection and Regulation of the Dynamic Conditions of a Drill Pipe String, Siversiya, Ivano-Frankovsk (2000).Google Scholar
  10. 10.
    Toro Downhole Tools. Drilling Tools Catalog, Tomball, Texas. USA (2012).Google Scholar
  11. 11.
    Secoroc Rock Drilling Tools. Product Catalogue. Atlas Copco Secoroc AB (2009).Google Scholar
  12. 12.
    VNIBT – Drilling Tools. Product Catalogue, Perm, Russia (2012).Google Scholar
  13. 13.
    Shock Sub. Impact and Vibration Reduction Sub, Schlumberger (2011).Google Scholar
  14. 14.
    V. M. Shopa, A. S. Velichkovich, S. V. Velichkovich, et al., Shell Springs, Fakel, Ivano-Frankovsk (2002).Google Scholar
  15. 15.
    A. S. Velichkovich and T. M. Dalyak, “Experimental verification of the finite-element model of contact interaction of an isolated shell with an elastic body,” Nauk. Visn. IFNTUNG, No. 1(31), 80–86 (2012).Google Scholar
  16. 16.
    O. C. Zienkiewicz and R. L. Taylor, The Finite Element Method: Solid Mechanics, Butterworth-Heinemann, Bristol (2000), Vol. 2.Google Scholar

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Ivano-Frankovsk National Technical University of Oil and GasIvano-FrankovskUkraine
  2. 2.Ivano-Frankovsk Division, Institute of Applied Problems of Mechanics and MathematicsNational Academy of Sciences of UkraineIvano-FrankovskUkraine

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